- Agriculture, Forestry & Fishing
- Agricultural Production Crops (104)
- Agriculture production livestock and animal specialties (22)
- Agricultural Services (606)
- Forestry (3)
- Fishing, hunting, and trapping (7)
- Construction & Mining
- Coal Mining (3)
- Oil And Gas Extraction (33)
- Mining And Quarrying Of Nonmetallic Minerals, Except Fuels (18)
- Building Construction General Contractors And Operative Builders (1345)
- Heavy Construction Other Than Building Construction Contractors (147)
- Construction Special Trade Contractors (2166)
- Manufacturing
- Food And Kindred Products (150)
- Tobacco Products (1)
- Textile Mill Products (32)
- Apparel And Other Finished Products Made From Fabrics And Similar Materials (89)
- Lumber And Wood Products, Except Furniture (106)
- Furniture And Fixtures (52)
- Paper And Allied Products (57)
- Printing, Publishing, And Allied Industries (509)
- Chemicals And Allied Products (124)
- Petroleum Refining And Related Industries (19)
- Rubber And Miscellaneous Plastics Products (65)
- Leather And Leather Products (16)
- Stone, Clay, Glass, And Concrete Products (94)
- Primary Metal Industries (49)
- Fabricated Metal Products, Except Machinery And Transportation Equipment (203)
- Industrial And Commercial Machinery And Computer Equipment (215)
- Manufacturing (con't)
- Electronic And Other Electrical Equipment And Components, Except Computer Equipment (100)
- Transportation Equipment (60)
- Measuring, Analyzing, And Controlling Instruments; Photographic, Medical And Optical Goods; Watches And Clocks (96)
- Miscellaneous Manufacturing Industries (218)
- Transportation & Utilities
- Railroad Transportation (15)
- Local And Suburban Transit And Interurban Highway Passenger Transportation (134)
- Motor Freight Transportation And Warehousing (761)
- United States Postal Service (34)
- Water Transportation (15)
- Transportation By Air (81)
- Pipelines, Except Natural Gas (2)
- Transportation Services (521)
- Communications (530)
- Electric, Gas, And Sanitary Services (131)
- Retail & Wholesale Trade
- Wholesale Trade-durable Goods (1933)
- Wholesale Trade-non-durable Goods (901)
- Building Materials, Hardware, Garden Supply, And Mobile Home Dealers (368)
- General Merchandise Stores (254)
- Food Stores (999)
- Automotive Dealers And Gasoline Service Stations (1008)
- Apparel And Accessory Stores (725)
- Home Furniture, Furnishings, And Equipment Stores (837)
- Eating And Drinking Places (2543)
- Miscellaneous Retail (2574)
- Finance, Insurance & Real Estate (con't)
- Insurance Carriers (260)
- Insurance Agents, Brokers, And Service (768)
- Real Estate (2906)
- Holding And Other Investment Offices (840)
- Services
- Hotels, Rooming Houses, Camps, And Other Lodging Places (332)
- Personal Services (2144)
- Business Services (10496)
- Automotive Repair, Services, And Parking (1280)
- Miscellaneous Repair Services (1181)
- Motion Pictures (236)
- Amusement And Recreation Services (845)
- Health Services (2996)
- Legal Services (1527)
- Educational Services (1051)
- Social Services (1377)
- Museums, Art Galleries, And Botanical And Zoological Gardens (71)
- Membership Organizations (2328)
- Engineering, Accounting, Research, Management, And Related Services (3329)
- Miscellaneous Services (567)
- Public Administration
- Executive, Legislative, And General Government, Except Finance (181)
- Justice, Public Order, And Safety (190)
- Public Finance, Taxation, And Monetary Policy (49)
- Administration Of Human Resource Programs (160)
- Administration Of Environmental Quality And Housing Programs (148)
- Administration Of Economic Programs (115)
- National Security And International Affairs (77)
- Nonclassifiable Establishments (5700)